窃听信号在 rhesus macaques 中产生偏见决策.
Michael A Cardenas1,2, Ryan P Le1, Tess M Champ1
1Department of Physiology, College of Medicine, The University of Arizona, Tucson, AZ, USA.
bioRxiv : the preprint server for biology
|July 19, 2024
概括
用药物改变身体的生理状态,降低了 rhesus 对不愉快刺激的耐受性. 这表明身体的整感信号通过改变厌恶而不是奖励值来影响决策.
科学领域:
- 神经科学是一个神经科学.
- 身体生理学 身体生理学
- 行为科学 行为科学
背景情况:
- 理论上,从身体到大脑的间接信号可以协调复杂的行为.
- 了解身体状态如何影响决策对行为神经科学至关重要.
研究的目的:
- 为了研究实验性改变生理状态对 rhesus 子决策的影响.
- 为了确定自主神经系统的变化是否有选择性地影响厌恶耐受性或奖励值.
主要方法:
- 施用甘酸盐 (副交感对手) 和异二醇 (交感激动剂) 来诱导交感主导状态.
- 通过测量对厌恶刺激的容忍度的方法-避免任务来评估决策.
- 使用食物偏好任务评估奖励价值.
主要成果:
- 这两种药物都显著降低了对厌恶刺激 (热刺激,空气流) 的耐受性.
- 通过食物偏好评估的奖励价值在糖酸方面保持不变.
- 心率升高指数化了诱导的同情主导的外围状态.
结论:
- 同情主导的生理状态选择性地降低对厌恶刺激的耐受性.
- 决策偏见似乎是由体感信号驱动的,这些信号反映了身体的生理状态.
- 这些发现支持整感受在调解对厌恶情境的行为反应中的作用.
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